CN114966908B - Composite film layer with improved visual angle and preparation method thereof - Google Patents
Composite film layer with improved visual angle and preparation method thereof Download PDFInfo
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- CN114966908B CN114966908B CN202210480488.7A CN202210480488A CN114966908B CN 114966908 B CN114966908 B CN 114966908B CN 202210480488 A CN202210480488 A CN 202210480488A CN 114966908 B CN114966908 B CN 114966908B
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- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 230000000007 visual effect Effects 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 51
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 30
- 238000004528 spin coating Methods 0.000 claims description 7
- 238000000059 patterning Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 38
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 2
- 230000003667 anti-reflective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/118—Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
- G03F7/0007—Filters, e.g. additive colour filters; Components for display devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
The embodiment of the application discloses a composite film layer with improved visual angle and a preparation method of the composite film layer with improved visual angle, wherein the preparation method of the composite film layer with improved visual angle comprises the following steps: preparing a plurality of filling structures which are arranged at intervals on a substrate through an imprinting process, wherein the side surfaces of the filling structures are outwards convex; filling microstructures with concave side surfaces between adjacent filling structures to prepare a viewing angle improving film, wherein the refractive index of each filling structure is larger than that of each microstructure; and reversing the visual angle improving film to enable the substrate to be positioned at the uppermost layer, and forming an LR coating on one side of the substrate far away from the microstructure to prepare the antireflection film. The filling structure is prepared by using a hard die, the microstructure with the concave side surface is prepared by refilling, and meanwhile, the cost can be greatly reduced by using the antireflection film of the LR coating.
Description
Technical Field
The application relates to the technical field of display viewing angles, in particular to a composite film layer with improved viewing angle and a preparation method of the composite film layer with improved viewing angle.
Background
In order to improve the viewing angle problem of a large-size panel of a top emission device, a viewing angle improving film is generally adopted, the viewing angle improving film can cause the reflectivity of a display to be increased, the reflectivity exceeds the lower reflectivity specification of the large-size display, a reflection-reducing AR film needs to be carried on the viewing angle improving film for use, and the cost is further increased due to the expensive cost of the AR film; the traditional hard die can not be used for the microstructure of the membrane with the improved visual angle, and the soft membrane has the characteristics of high cost and large loss, so the cost is particularly high.
Therefore, the existing visual angle improved composite film has the technical problems of difficult preparation and high cost.
Disclosure of Invention
The embodiment of the application provides a composite film layer with improved visual angle and a preparation method of the composite film layer with improved visual angle, which can solve the technical problems that the existing composite film layer with improved visual angle is difficult to prepare and has high cost.
The embodiment of the application provides a preparation method of a composite film layer with improved visual angle, which comprises the following steps:
providing a substrate;
coating a layer of a first material on the substrate to form a first material layer;
patterning the first material layer by adopting an imprinting process to form a plurality of filling structures arranged at intervals;
filling a second material between adjacent filling structures to form microstructures between the adjacent filling structures, and preparing the visual angle improvement film, wherein the side surfaces of the microstructures are concave, and the refractive index of the first material is larger than that of the second material;
and reversing the visual angle improving film to enable the substrate to be positioned at the uppermost layer, and forming an LR coating on one side of the substrate far away from the microstructure to prepare the antireflection film.
Optionally, in some embodiments of the present application, the step of forming a plurality of spaced apart fill structures further includes:
and (3) adopting an imprinting process on the first material layer through a hard die to prepare the filling structure with a plurality of convex sides.
Optionally, in some embodiments of the present application, the step of preparing the antireflection film on a side of the substrate remote from the microstructure further includes:
the antireflection film is prepared by adopting any one of a dry method, a wet method and spin coating.
The embodiment of the application provides a composite film layer is improved to visual angle, including range upon range of visual angle improvement membrane, the reflection-reducing film that sets up, visual angle improvement membrane include the base, set up in the microstructure of base one side, fill and set up in adjacent fill between the microstructure and level the structure, wherein, fill the refractive index of level the structure and be greater than the refractive index of microstructure, the side of microstructure is concave shape, the reflection-reducing film set up in the substrate is kept away from a side surface of microstructure.
Optionally, in some embodiments of the present application, the thickness of the film layer of the anti-reflection film is greater than 200 microns.
Optionally, in some embodiments of the present application, the side surface of the microstructure is disposed in a manner of being in contact with the entire side surface of the filling structure, and the top surface of the side of the microstructure away from the substrate is disposed in a manner of being flush with the top surface of the side of the filling structure away from the substrate.
Optionally, in some embodiments of the present application, the refractive index of the microstructure ranges from 1.45 to 1.55, and the refractive index of the fill-up structure ranges from 1.55 to 1.65.
Alternatively, in some embodiments of the present application, the substrate is made of any one of PET and polyimide.
Optionally, in some embodiments of the present application, a polarizing film layer is disposed on a side of the microstructure, the fill-up structure, away from the substrate.
Optionally, in some embodiments of the present application, the spacing between adjacent microstructures is equal.
The beneficial effects are that: the outer convex filling structure is firstly prepared on the substrate, then the microstructure with the side surface concave is prepared between the adjacent filling structures, the outer convex filling structure can directly use a hard die, the prepared visual angle improving film is reversely arranged, the antireflection film of the LR coating is prepared on the side, far away from the microstructure, of the substrate, and the hard die and the LR coating are used as the antireflection film, so that the cost can be greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for preparing a composite film layer with improved visual angle;
FIG. 2A is a schematic cross-sectional view of a semi-finished structure in the view angle improving composite film layer manufacturing method provided by the present application;
FIG. 2B is a schematic cross-sectional view of a second semi-finished structure in the view angle improving composite film layer manufacturing method provided by the present application;
FIG. 2C is a schematic cross-sectional view of a third semi-finished structure in the view angle improving composite film layer manufacturing method provided by the present application;
FIG. 2D is a schematic cross-sectional view of a semi-finished structure in the view angle improving composite film layer manufacturing method provided by the present application;
fig. 3 is a schematic cross-sectional view of a viewing angle improving composite film layer provided herein.
Reference numerals illustrate:
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
Referring to fig. 1 and fig. 2A to fig. 2D, the present application provides a method for preparing a composite film layer with improved viewing angle, which includes:
s1: providing a substrate 10;
s2: coating a layer of a first material on the substrate 10 to form a first material layer;
s3: patterning the first material layer by an imprinting process to form a plurality of spaced apart fill structures 30;
s4: filling a second material between adjacent filling structures 30 to form microstructures 20 between the adjacent filling structures 30, and preparing the viewing angle improving film, wherein the side surfaces of the microstructures 20 are concave, and the refractive index of the first material is larger than that of the second material;
s5: the viewing angle improving film is inverted such that the substrate 10 is positioned at the uppermost layer, and an LR coating layer is formed on the side of the substrate 10 remote from the microstructure 20, to prepare the antireflection film 40.
Wherein the step of reversing the viewing angle improving film includes: the viewing angle improving film was rotated 180 degrees.
In this embodiment, the filling structure 30 with the convex side surface is first prepared on the substrate 10, then the microstructure 20 with the concave side surface is prepared by filling between adjacent filling structures 30, the outer convex filling structure 30 can directly use a hard die, the prepared viewing angle improving film is inverted, the anti-reflection film 40 with the LR coating is prepared on the side of the substrate 10 far away from the microstructure 20, and the hard die is used for simultaneously using the anti-reflection film 40 with the LR coating, so that the cost can be greatly reduced.
Referring to fig. 3, the viewing angle improving composite film provided in the present application includes a viewing angle improving film and an antireflection film 40 that are stacked, where the viewing angle improving film includes a substrate 10, a microstructure 20 disposed on one side of the substrate 10, and a filling structure 30 disposed between adjacent microstructures 20, where a refractive index of the filling structure 30 is greater than that of the microstructure 20, a side surface of the microstructure 20 is concave, and the antireflection film 40 is disposed on a surface of the substrate 10 away from the microstructure 20.
Wherein the surface of the substrate 10 on the side remote from the microstructures 20 is a smooth surface.
Wherein the anti-reflection film 40 may be an LR coating.
It will be appreciated that the AR films meeting the reflectivity specification used in the prior art are all imported films, which are relatively expensive, and the cost can be reduced by providing the anti-reflection film 40 as an LR coating.
It should be noted that the AR film of the prior art is generally disposed on the side of the microstructure 20 away from the substrate 10, and the LR coating layer needs to be disposed on a smooth surface, so that the surface of the side of the substrate 10 away from the microstructure 20 needs to satisfy a certain smoothness.
In the present embodiment, by disposing the antireflection film 40 on the smooth surface of the substrate 10 on the side away from the microstructure 20, the LR-coated antireflection film 40 can be disposed on the smooth surface, and the cost can be reduced.
The technical solutions of the present application will now be described with reference to specific embodiments.
In one embodiment, the step of forming a plurality of spaced apart fill structures 30 further comprises: the first material layer is subjected to an imprinting process through a hard die, so that a plurality of filling structures 30 with convex sides are prepared.
Wherein, the hard film is a high-rigidity alloy mold commonly used in film factories.
It will be appreciated that the side surfaces of the filling structures 30 are convex outwards and are easy to be processed by hard dies, so that the filling structures 30 with convex outwards are prepared first, then the microstructures 20 are filled between the adjacent filling structures 30, and the side surfaces of the microstructures 20 are concave inwards.
In this embodiment, by preparing the filling structure 30 and then forming the microstructure 20, it is possible to avoid the need to use a soft mold for directly processing the microstructure 20, and the soft mold is replaced by a hard mold, which is much lower in cost than the soft mold, thereby reducing the cost.
In one embodiment, the step of forming the anti-reflection film 40 on the side of the substrate 10 remote from the microstructure 20 further comprises: the antireflection film 40 is prepared by any one of a dry method, a wet method and spin coating.
Wherein, the spin coating specifically includes: LR is applied to the surface of the substrate 10 remote from the microstructure 20, and the LR is then dispersed outwardly by centrifugal force by rotating the substrate 10, and cured to form the LR coated antireflection film 40.
It will be appreciated that the spin coating is less costly than the wet process than the dry process; preferably, the LR coated anti-reflection film 40 is prepared by spin coating.
In the present embodiment, the cost of preparing the antireflection film 40 is further reduced by selecting a preparation process with lower cost.
In one embodiment, the manufacturing method of the composite film layer with improved visual angle adopts a hard die to replace the existing soft die and adopts an LR coating to replace the existing AR film, so that the cost can be reduced by 50-70%.
It can be understood that the hard mold is adopted to replace the existing soft mold because the hard mold can only process the structure with the side surface having the outward convex shape, and therefore, the microstructure 20 with the side surface having the inward concave shape cannot be directly prepared by the hard mold; the application prepares the outer convex filling structure 30 by the hard die, and then fills the micro-structure 20 with the inner concave shape, so that the soft die is replaced by the hard die, and the cost is reduced.
It can be appreciated that in the prior art, the AR film is generally disposed directly on the surface of the side of the microstructure 20 away from the substrate 10, and the side of the microstructure 20 away from the substrate 10 is not smooth and flat enough, so that the LR-coated antireflection film 40 cannot be prepared by spin coating; while the present application utilizes the smooth substrate 10 on the side facing away from the microstructures 20 to prepare the anti-reflective film 40, the present AR film can be replaced by an LR coating, thereby reducing costs.
In one embodiment, the thickness of the antireflective film 40 is greater than 200 microns.
It will be appreciated that due to process variations and the like, the LR coating typically has a film thickness greater than 200 microns, while the AR film has a film thickness of 50 microns to 150 microns; the anti-reflection film 40 may be determined to be an LR coating or an AR film according to the thickness of the anti-reflection film 40.
In the present embodiment, by making the antireflection film 40 an LR coating, the cost is reduced, and the thickness of the antireflection film 40 is further defined, unlike an AR film.
In one embodiment, the side surface of the microstructure 20 is attached to the entire side surface of the filling structure 30, and the top surface of the side of the microstructure 20 away from the substrate 10 is flush with the top surface of the side of the filling structure 30 away from the substrate 10.
Wherein a recess is provided between adjacent filling structures 30.
The microstructures 20 are filled between the adjacent filling structures 30, so that the contact surfaces of the two structures are tightly attached to each other, and the side shapes of the two structures are complementary to each other.
It will be appreciated that the material for preparing the microstructure 20 has a flowing property under a preset condition, so that when the microstructure 20 fills the recess between the adjacent filling structures 30, the situation that the sides of the two cannot be completely bonded due to the existence of a gap is avoided.
In this embodiment, by defining that the lateral surface of the microstructure 20 is complementary to the measurement surface of the filling structure 30, the lateral surface of the microstructure 20 and the measurement surface of the filling structure 30 are tightly attached to each other, so that a gap or a bubble is prevented from being present between the microstructure 20 and the filling structure 30, and the effect of light diffusion at the contact surface of the microstructure 20 and the filling structure 30 is further improved.
In one embodiment, the refractive index of the microstructures 20 ranges from 1.45 to 1.55, and the refractive index of the fill-up structures 30 ranges from 1.55 to 1.65.
Preferably, the microstructure 20 is 1.5, and the filling structure 30 is 1.6.
It can be understood that, the refractive index is that of the light, the structure with a large refractive index of the light is an optically dense medium, the structure with a small refractive index of the light is an optically sparse medium, and since the refractive index of the microstructure 20 is smaller than that of the filling structure 30, when the light is injected into the filling structure 30 from the microstructure 20, the included angle between the refractive light and the normal line is smaller than that between the incident light and the normal line at the refractive surface, i.e. the incident angle α is larger than the refractive angle β, so that the angle of view of the light can be diffused.
In one embodiment, the substrate 10 is made of any one of PET and polyimide.
The transmittance of the material prepared by the substrate 10 is more than 80%, so that the light-emitting rate of the composite film layer is further improved.
In one embodiment, a polarizing film layer is disposed on a side of the microstructures 20, 30 remote from the substrate 10.
In one embodiment, the spacing between adjacent microstructures 20 is equal.
It will be appreciated that the microstructures 20 for improving the viewing angle of light are uniformly arranged, so that the viewing angles of light emitted from different sides are substantially the same, and the uniformity of the viewing angles of light emitted from different sides is improved.
In one embodiment, the side concavity of the microstructure 20 is in the shape of a polyline.
In one embodiment, the refractive index of the material from which the anti-reflection film 40 is made ranges from 1.2 to 1.7.
The application also provides a display panel, a display module, a display device, display panel the display module with display device all includes above-mentioned visual angle improvement complex film layer, and this is unnecessary to describe again.
It should be noted that the light emitting units of the display panel, the display module and the display device can be aligned with the microstructure, which is beneficial to improving the effect of diffusing the light-emitting visual angle of the microstructure; wherein the light emitting unit is positioned at one side of the microstructure away from the substrate.
The preparation method of the visual angle improvement composite film layer provided by the embodiment comprises the steps of providing a substrate; coating a layer of a first material on the substrate to form a first material layer; patterning the first material layer by adopting an imprinting process to form a plurality of filling structures arranged at intervals; filling a second material between adjacent filling structures to form microstructures between the adjacent filling structures, and preparing the visual angle improvement film, wherein the side surfaces of the microstructures are concave, and the refractive index of the first material is larger than that of the second material; and reversing the visual angle improving film to enable the substrate to be positioned at the uppermost layer, and forming an LR coating on one side of the substrate far away from the microstructure to prepare the antireflection film. The outer convex filling structure is firstly prepared on the substrate, then the microstructure with the inner concave side surface is prepared between the adjacent filling structures, the outer convex filling structure can directly use the hard die, the prepared visual angle improving film is reversely arranged, the antireflection film of the LR coating is prepared on the side, far away from the microstructure, of the substrate, and the hard die is used for simultaneously using the antireflection film of the LR coating, so that the cost can be greatly reduced.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above details of the viewing angle improving composite film layer and the preparation method of the viewing angle improving composite film layer provided in the embodiments of the present application, and specific examples are applied herein to illustrate the principles and embodiments of the present application, and the above examples are only used to help understand the methods and core ideas of the present application; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (3)
1. The preparation method of the composite film layer with the improved visual angle is characterized by comprising the following steps:
providing a substrate;
coating a layer of a first material on the substrate to form a first material layer;
patterning the first material layer by adopting an imprinting process to form a plurality of filling structures arranged at intervals, wherein the side surfaces of the filling structures are outwards convex;
filling a second material between adjacent filling structures to form microstructures positioned between the adjacent filling structures, and preparing the viewing angle improving film, wherein the side surfaces of the microstructures are concave, the side surfaces of the microstructures are in fit arrangement with the whole side surfaces of the filling structures, the microstructures are complementary with the side surfaces of the filling structures in shape, and the refractive index of the first material is larger than that of the second material;
and reversing the visual angle improving film to enable the substrate to be positioned at the uppermost layer, and forming an LR coating on one side of the substrate far away from the microstructure to prepare the antireflection film.
2. The method of preparing a viewing angle improving composite film layer of claim 1, wherein the step of forming a plurality of spaced apart fill-up structures further comprises:
and (3) adopting an imprinting process on the first material layer through a hard die to prepare the filling structure with a plurality of convex sides.
3. The method of preparing a viewing angle improving composite film layer according to claim 2, wherein the step of preparing an antireflection film on a side of the substrate remote from the microstructure further comprises:
the antireflection film is prepared by adopting any one of a dry method, a wet method and spin coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210480488.7A CN114966908B (en) | 2022-05-05 | 2022-05-05 | Composite film layer with improved visual angle and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210480488.7A CN114966908B (en) | 2022-05-05 | 2022-05-05 | Composite film layer with improved visual angle and preparation method thereof |
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| CN114966908B true CN114966908B (en) | 2024-02-06 |
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| CN105372733A (en) * | 2015-12-01 | 2016-03-02 | 上海交通大学 | Reflective film with moth eye structure and preparation technology thereof |
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| CN111796349A (en) * | 2020-07-02 | 2020-10-20 | Tcl华星光电技术有限公司 | Visual angle diffusion film and display panel |
| CN112379475A (en) * | 2020-11-13 | 2021-02-19 | 深圳纳弘熠岦光学科技有限公司 | Display synergistic film and display device |
| CN114167633A (en) * | 2021-12-14 | 2022-03-11 | 深圳市华星光电半导体显示技术有限公司 | Visual angle diffusion film and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011158752A1 (en) * | 2010-06-15 | 2011-12-22 | シャープ株式会社 | Display device and method for manufacturing same |
| US11604308B2 (en) * | 2017-06-01 | 2023-03-14 | Samsung Sdi Co., Ltd. | Polarizing plate and liquid crystal display device including same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372733A (en) * | 2015-12-01 | 2016-03-02 | 上海交通大学 | Reflective film with moth eye structure and preparation technology thereof |
| CN207366880U (en) * | 2017-11-03 | 2018-05-15 | 东莞市泰宇达光电科技有限公司 | Visible product under a kind of membrane material type sunlight |
| CN111796349A (en) * | 2020-07-02 | 2020-10-20 | Tcl华星光电技术有限公司 | Visual angle diffusion film and display panel |
| CN112379475A (en) * | 2020-11-13 | 2021-02-19 | 深圳纳弘熠岦光学科技有限公司 | Display synergistic film and display device |
| CN114167633A (en) * | 2021-12-14 | 2022-03-11 | 深圳市华星光电半导体显示技术有限公司 | Visual angle diffusion film and display device |
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| CN114966908A (en) | 2022-08-30 |
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